03 Ultra rear brake disc warped

Braking at higher speeds doesn't seem to be an issue (or am I fooling myself?) but applying the rear brake at lower speeds, especially right before coming to a stop results in a rather severe pulsating feeling.

From what I've read I most likely have a warped rotor, which I want to replace ASAP.

I am a pretty handy guy and have all the basic tools, and don't mind investing in some others, but I have no experience with working on my 03 Ultra Classic as far as brakes go.

1) Does it require any special tools?
2) Is it a job I can do myself, or do you recommend leaving it to the professionals.
3) If I have this done at the Dealer; What is a ballpark figure I can expect to pay?

The hardest part of the job will be removing the bolts that mount the rotor to the hub. You should also have a torque wrench available for torquing the rotor down. Recommended to replace the bolts.
Ken

The hardest part of the job will be removing the bolts that mount the rotor to the hub. You should also have a torque wrench available for torquing the rotor down. Recommended to replace the bolts.
Ken

Brake disc on this side of the pond whether on a car truck or bike
I am pretty sure that you should replace all the mounting bolts when a brake disc is removed and then refitted as they can get hot and are placed under a lot of strain when in use blue loctite should be used to ensure the bolts do not come out again
Biggest problem you will have is getting the wheel off without a lift